[ALSA] Fix probe of non-PnP ISA devices
isa_register_driver() returns an error if no device is found
and it's no fatal error for the drivers with pnp support.
Signed-off-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
diff --git a/sound/isa/cs423x/cs4236.c b/sound/isa/cs423x/cs4236.c
index 87f1392..1a14f33 100644
--- a/sound/isa/cs423x/cs4236.c
+++ b/sound/isa/cs423x/cs4236.c
@@ -127,6 +127,7 @@
MODULE_PARM_DESC(dma2, "DMA2 # for " IDENT " driver.");
#ifdef CONFIG_PNP
+static int isa_registered;
static int pnpc_registered;
#ifdef CS4232
static int pnp_registered;
@@ -770,9 +771,9 @@
int err;
err = isa_register_driver(&cs423x_isa_driver, SNDRV_CARDS);
- if (err < 0)
- return err;
#ifdef CONFIG_PNP
+ if (!err)
+ isa_registered = 1;
#ifdef CS4232
err = pnp_register_driver(&cs4232_pnp_driver);
if (!err)
@@ -781,8 +782,14 @@
err = pnp_register_card_driver(&cs423x_pnpc_driver);
if (!err)
pnpc_registered = 1;
-#endif /* CONFIG_PNP */
- return 0;
+#ifdef CS4232
+ if (pnp_registered)
+ err = 0;
+#endif
+ if (isa_registered)
+ err = 0;
+#endif
+ return err;
}
static void __exit alsa_card_cs423x_exit(void)
@@ -794,8 +801,9 @@
if (pnp_registered)
pnp_unregister_driver(&cs4232_pnp_driver);
#endif
-#endif /* CONFIG_PNP */
- isa_unregister_driver(&cs423x_isa_driver);
+ if (isa_registered)
+#endif
+ isa_unregister_driver(&cs423x_isa_driver);
}
module_init(alsa_card_cs423x_init)